In Eastern Christianity, an iconostasis is a wall of icons and religious paintings, separating the nave from the sanctuary in a church. Iconostasis also refers to a portable icon stand that can be placed anywhere within a church. The iconostasis evolved from the Byzantine templon, a process complete by the 15th century.
Five-panel Deesis row (center), iconostasis in the Cathedral of the Annunciation in Moscow Kremlin by Theophanes the Greek, 1405
People's Salvation Cathedral in Bucharest (the world's largest Orthodox iconostasis)
The Temple of Saint Sava in Belgrade
Mid-17th-century iconostasis at Ipatiev Monastery. To either side of the Holy Doors are Christ Pantokrator and the Theotokos; above them, the Great Feasts; above them, the Deesis; above that Prophets to either side of Our Lady of the Sign; above them the Apostles to either side of the Holy Trinity.
An icon is a religious work of art, most commonly a painting, in the cultures of the Eastern Orthodox, Oriental Orthodox, and Catholic churches. They are not simply artworks; "an icon is a sacred image used in religious devotion". The most common subjects include Jesus, Mary, saints, and angels. Although especially associated with portrait-style images concentrating on one or two main figures, the term also covers most of the religious images in a variety of artistic media produced by Eastern Christianity, including narrative scenes, usually from the Bible or the lives of saints.
The Ladder of Divine Ascent depicts monks ascending to Jesus in heaven in the top right. 12th century, Saint Catherine's Monastery.
Russian icon of the Holy Trinity
The icon of St Nicolas carved in stone (between c. 12 and 15th centuries), at the Radomysl Castle, in Ukraine.
Luke painting the Theotokos of Vladimir (16th century, Pskov)